World Health Organization2020-12-162020-12-162020-12-16WHO/2019-nCoV/Surveillance_Case_Definition/2020.2https://iris.who.int/handle/10665/3378341 p.enCC BY-NC-SA 3.0 IGOhttps://creativecommons.org/licenses/by-nc-sa/3.0/igoCOVID-19Disease OutbreaksBetacoronavirusPublic Health SurveillanceCase ManagementSymptom AssessmentSeverity of Illness IndexWHO COVID-19: case definitions: updated in public health surveillance for COVID-19, published 16 December 2020Technical DocumentsWorld Health Organization